求函数y=sin(π/6 - x)的递减区间老师给的答案换算成cos(x+π/3)得到【2kπ-π/3,2kπ+2π/3】我直接用sin图像得出【2kπ-4π/3,2kπ-π/3】 哪里错了
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/04 04:37:17
![求函数y=sin(π/6 - x)的递减区间老师给的答案换算成cos(x+π/3)得到【2kπ-π/3,2kπ+2π/3】我直接用sin图像得出【2kπ-4π/3,2kπ-π/3】 哪里错了](/uploads/image/z/10089826-34-6.jpg?t=%E6%B1%82%E5%87%BD%E6%95%B0y%3Dsin%28%CF%80%2F6+-+x%29%E7%9A%84%E9%80%92%E5%87%8F%E5%8C%BA%E9%97%B4%E8%80%81%E5%B8%88%E7%BB%99%E7%9A%84%E7%AD%94%E6%A1%88%E6%8D%A2%E7%AE%97%E6%88%90cos%EF%BC%88x%2B%CF%80%2F3%EF%BC%89%E5%BE%97%E5%88%B0%E3%80%902k%CF%80-%CF%80%2F3%2C2k%CF%80%2B2%CF%80%2F3%E3%80%91%E6%88%91%E7%9B%B4%E6%8E%A5%E7%94%A8sin%E5%9B%BE%E5%83%8F%E5%BE%97%E5%87%BA%E3%80%902k%CF%80-4%CF%80%2F3%2C2k%CF%80-%CF%80%2F3%E3%80%91+%E5%93%AA%E9%87%8C%E9%94%99%E4%BA%86)
xՑANPҥb4*wQW -h *
Pc CkW\Vݸ1ƍy?b:Y߰bmI{68YW'>9Y뛎GaQi{&홨vXabbI)?#U,sRFLjmjXl#'Hv?/*qpos(Tw8wտqmB:)+b@^mЫLv[
wCT{G&ɓXrXC[X(xNW<2p4AlB5-oZc{"}jųsQ&b